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feat: use iana media type vocabulary for format mapping, if eu format vocabulary does not match #82

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merged 8 commits into from
Oct 3, 2023
Merged

feat: use iana media type vocabulary for format mapping, if eu format vocabulary does not match #82

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d3e6e25
feat: import iana media type vocabulary and map it to media type
sarusarah Sep 27, 2023
fac9222
feat: import and parse iana media type vocabulary
sarusarah Sep 27, 2023
62f3d7e
feat: hardening format/media type mapping for rdf graph
sarusarah Sep 29, 2023
27d275f
test: adjust test for case format is not set and iana media type mapp…
sarusarah Sep 29, 2023
41572a3
fix: linter errors
sarusarah Sep 29, 2023
dbe8800
feat: add mapping for media type based on format eu vocabulary and me…
sarusarah Oct 3, 2023
49de890
refactor: move rights/license and format/media type graph in seperate…
sarusarah Oct 3, 2023
4fddb61
refactor: reduce complexity of method_format_and_media_type_to_graph
sarusarah Oct 3, 2023
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25 changes: 23 additions & 2 deletions ckanext/dcatapchharvest/dcat_helpers.py
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Original file line number Diff line number Diff line change
Expand Up @@ -5,8 +5,9 @@
from ckantoolkit import config
from rdflib import URIRef, Graph
from rdflib.namespace import Namespace, RDF, SKOS

import xml.etree.ElementTree as ET
import logging

log = logging.getLogger(__name__)

DCT = Namespace("http://purl.org/dc/terms/")
Expand All @@ -27,6 +28,10 @@
"rdf": RDF,
}

media_types_namespaces = {
'ns': 'http://www.iana.org/assignments'
}

license_namespaces = {
"skos": SKOS,
"dct": DCT,
Expand All @@ -35,7 +40,6 @@
"rdfs": RDFS,
}


theme_namespaces = {
"euthemes": EUTHEMES,
"skos": SKOS,
Expand Down Expand Up @@ -248,3 +252,20 @@ def get_publisher_dict_from_dataset(publisher):
if not isinstance(publisher, dict):
publisher = json.loads(publisher)
return publisher.get('url'), publisher.get('name')


def get_iana_media_type_values():
file = os.path.join(__location__, 'iana_media_types.xml')
tree = ET.parse(file)
root = tree.getroot()
records = root.findall('.//ns:record', media_types_namespaces)
media_type_values = {}
for record in records:
if record.find('ns:file', media_types_namespaces) is None:
continue
if record.find('ns:name', media_types_namespaces) is None:
continue
name = record.find('ns:name', media_types_namespaces).text
file_value = record.find('ns:file', media_types_namespaces).text
media_type_values[name] = media_types_namespaces['ns']+'/'+file_value
return media_type_values
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